PA question

Discussion in 'Miscellaneous [BG]' started by steve-o, Sep 23, 2003.

  1. steve-o

    steve-o Guest

    Apr 17, 2002
    how many watt does a pa need to be?
    and is a seprate mixer power amp better that a contained head...

    right no wi have the new peavey pa speakers (plastic covering) they are 12's and i have a crate powered mixer 350 watts at 4 ohm...

    but if i turn the knob past 5 it get a big his noise..could this be a bad pot? (this head has some age..and has fallen off my bass cab a few times (5 ft)

  2. redneck2wild


    Nov 27, 2002
    Memphis, TN
    Some powered mixers are noisy.
    It may be boosting noise on one of the connected channels.

    Which knob are you turning past 5 when you get the noise?
    What are the individual channels set to when you get the noise?

    Does it hiss with all the channels turned down (off) and the Master volume turned up?

    Does it hiss with nothing connected to any of the channels?

    Does the hiss only come out of the Horn/tweeter of the cabinet?

    On the question of how much power you need:
    It depends on what the PA is used for and where it needs to amplify sound.
    350 Watts into 2 cabinets (each with a 12 and a horn) should work fine for vocals (only) in small clubs.
    If you need support for Drums and Bass though, you probably need Subs and more power.
    12s typically do not produce low frequencies well at loud volumes.
  3. steve-o

    steve-o Guest

    Apr 17, 2002
    no matter what i sup or down or hooked up difernt cabs..the hiss is still there. and its the master..its quiet then i hear a click and hiss..and i causes bad feedback since there is more noise...

    just vocals..maybe the bassdrum but thats is